TM 9--2350--292--20--1
0016 00--2
APU CONTROL BOX ENGINE OIL PRESSURE GAUGE READS ZERO WITH
APU ENGINE RUNNING -- CONTINUED
0016 00
CONTINUED FROM STEP A
CONTINUED ON NEXT PAGE
C
Is 24 V dc present?
no
yes
1. Disconnect harness 4W700 connector P1 at
the APU control box.
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Place red multimeter lead on harness 4W700
connector P1 socket N and black multimeter
lead on vehicle ground. Check for voltage.
4. Turn MASTER switch OFF
(TM 9--2350--292--10).
Repair (WP 0290 00) or
replace (WP 0332 00)
harness 4W700. Verify
fault is corrected.
